Generate your own ScaleTag, at any size. Print at 100% (no "fit to page") to preserve true scale.
Distance between the marker centers, an integer from 1 to 200.
Total size including margins. The marker spacing is rounded down to whole units of the finest power of ten that fits (max 200 units), so the tag may be slightly smaller.
Set any one of resolution, width or height; the other two follow.